Ferdinand bellet



No. 62|,0I7. Patented Mar. I4, |899.

F. BELLET.

TRANSMISSION DEVICE.

(Application filed Aug. 9, 1897.)

(No Model.)

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UNITED STATES FERDINAND BELLET,

OF PARIS,- FRANCE.

TRANSMISSION DEVICE.

SPECIFICATION forming part of Letters Patent No. 621,017, dated March14, 1899.

Application filed August 9, 1897.

To all whom, t may concer-7c:

Be it known that I, FERDINAND BELLET, a citizen of the Republic ofFrance, residing at Paris, France, have invented a certain new anduseful Improved Transmission Device, of which the following is aspecification.

This invention relates to a new device for transmitting movement bymeans of oscillating toothed wheels and is applicable generally to allapparatus in which a lm band or ribbon is to be moved or wound up in oneor the other direction-such, for instance, as roller devices forphotographic, stereoscopic, or panoramic apparatus, stereoscopes,graphoscopes, magic lanterns, projecting-lanterns, registering apparatus,type-writers, and for similar 'purposes In the accompanying drawings thedevice according to the present invention is shown by way of example asapplied to a rollerframe, Figure l showing a roller-frame in frontelevation and Fig. 2 in vert-ical crosssection on the line Y Y of Fig.l.

The band A, which it may be desired to move alternately in one or in theother direc tion, according to the wish of the operator, may be a paperband, a photographic tilm, or any other flexible sheet which is capableof being rolled up. Said band A in the example shown in the drawings iscapable of being alternately wound up on two rollers B and C, which arerotatableon their parallel spindles supported in a framing D. Therollers B C, of wood, metal, or any other suitable material, may beprovided at each of their ends with a circular flange E, serving toguide the rolling np of the band A.

Each roller B C carries at oneof its extrernities a toothed wheel F G,which when rotated causes its corresponding lroller to rotate. The otherends of said rollers B C are preferably acted upon by smallspring-blades H I, pressing against the framing D and serving to producesufficient friction to prevent the rollers from rotating except whenthey are rotated by the operator.

On the side of the framing D on which are supported the ends of therollers B C, carrying the toothed wheels F G, is arranged the mechanismaccording to the present invention, enabling the operator to actuate oneor other of the rollers B C as desired by simply Serial No. 647,552. (Nomodel.)

turning a central milled knob J or handle in one or in the otherdirection. The mechanism consists chieiiy of a main toothed wheel K,mounted on a spindle L, which carries a milled head or handle J. Uponthe spindle L, between the wheel K and the corresponding inner face ofthe framing D, is arranged so as to be capable of oscillating on saidspindle a plate M. A spring-blade N, bearing upon the wheel K, and ascrew-head O `on the inner end of the spindle tends to keep the plate Mand wheel K in close contact, so as to produce sufficient frictionbetween them to cause the plate M to participate in ythe movement ofwheel K when the' latter is caused to rotate by turning the knob J andits spindle L. Y'

The plate M carries two small toothed wheels P Q, rotating about fixedspindles R and S, secured to the plate. These two wheels are arranged tobe in constant engagement with the main wheel K and so that when theplate M is brought into a certain position one of its wheels P or Qengages simultaneously with the main gear K and with its correspondingwheel F or G on one ofthe rollers B or C, the other wheel engaging onlywith the main wheel K, but being out of engagement with itscorresponding wheel F or G on the other roller. The plate M being turnedin the opposite direction of the toothed wheel P or Q which was engagedwith its corresponding wheel F or G on the roller will become disengagedfrom it, while remaining always in engagementwith the main wheel K,while the other wheel, also still inengagement with the main wheel K, iscaused to engage with the corresponding wheel F or G on the other rollerwith which it had been previously out of engagement. In the rst case themovement communicated to the milled head J is transmitted by the maintoothed wheel K to that roller which is connected to it by thecorresponding toothed Wheels, and in the second case the other roller isdriven.

The movement of the plate M, carrying the toothed wheel P or Q, ispreferably limited by two stops T U, arranged in the desired position onthe framing D and regulating the movement of said plate M, so that theengagement of the toothed wheels mentioned takes place under the mostfavorable conditions.

IOO

corresponding roller B or C. By turning the milled knob .I in theopposite direction the plate M is caused to turn in that direction, theresult of which will of courserbe the disengagement of the rollerpreviously driven and the engagement of the toothed Wheel P or Qcorresponding to the other roller, to which its rotary motion will bethus transmitted. Either of the rollers B and C may be thus drivenaccording to requirement or wish by turning the milled knob .I in one orin the other direction, and as owing to the arrangement described andillustrated the movel ments of the rollers take place in opposite diirections the result will be that it will be posp sible to wind the bandaround one or other of the rollers, as desired, the roller on which theband is being wound up being driven, while the other, from which theband is being un- Wound, is out of driving contact.

I claim- 1. In a device of the character described, the combination witha main supportingframe, of rollers rotatably carried thereby, a toothedwheel mounted on one end of each of said rollers, a spindle rotatablymounted in the frame intermediate the rollers, a main toothed wheelmounted on said spindle,a plate oscillatably mounted on the spindle andheld in frictional contact with the main toothed wheel whereby saidplate may be partially turned or oscillated in one or the otherdirection when the spindle and the main toothed wheel arecorrespondingly turned as described, and toothed wheels carried by theplate and gearing with the main wheel and adapted to engage with one orthe other of the toothed Wheels on the rollers when the plate isoscillated in one or the other direction, for the purposes specified.

2. In a device of the character described, the combination with a mainsupportingframe, of rollers rotatably carried thereby, a toothed wheelmounted on one end of each of said rollers, a spindle rotatably mountedin the frame intermediate the rollers, a main toothed wheel mounted onsaid spindle,aplate oscillatably mounted on the spindle between the mainWheel and the side of the frame, a spring bearing against the maintoothed wheel to hold the latter and the plate in frictional contactwhereby said plate may be partially turned or oscillated in one or theother direc tion when the spindle and the main wheel are correspondinglyturned, as described, and toothed wheels carried by the plate andgearing with the main wheel and adapted to engage with one or the otherof the toothed Wheels on the rollers when the plate is oscillated in oneor the other direction, for the purposes specified.

In testimony whereof I have hereto set my hand in the presence of thetwo subscribing witnesses. y

FERDINAND BELLET. Witnesses:

LoUIs SULLIGER, EDWARD P. MACLEAN.

